JEE Main 2005Annual, Paper 1ChemistryEasyd- and f-Block Elements158× since 2002The oxidation state of chromium in the final product formed the reaction between KIK{\rm I}KI and acidified potassium dichromate solution is :AOption A. +3+3+3BOption B. +2+2+2COption C. +6+6+6DOption D. +4+4+4CheckSkip · show solution